Pop stars who have changed their names

Cat Stevens first changed his name, from Steven Demetre Georgiou, because his
girlfriend said he had eyes like a cat's. After nearly drowning off the
California coast in 1976, Stevens had a religious epiphany and began
studying Islam. He officially converted at the end of 1977 and took the name
Yusuf Islam the following year – Yusuf being the Arabic version of Joseph, a
name he had admired.